require 'formula' class Mp3gain < Formula homepage 'http://mp3gain.sourceforge.net' url 'https://sourceforge.net/projects/mp3gain/files/mp3gain/1.5.2/mp3gain-1_5_2_r2-src.zip' version '1.5.2' sha1 'cc7de597861803ac55199b8093c84f86fb5807f1' def install system "make" bin.install 'mp3gain' end end